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Selection of the most potent Bacillus sphaericus strains based on activity ratios determined on three mosquito species

  • Applied Microbiology
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Summary

The larvicidal power of more than 180 Bacillus sphaericus strains belonging to six H serotypes has been assayed on Culex pipiens, Anopheles stephensi and Aedes aegypti under standardized conditions. The most potent strains are distributed into serotype H5a5b, generally toxic to the three mosquito species, and serotypes H6 and H25, toxic to C. pipiens and A. stephensi. Strains of serotypes 26a26b and H2a2b are much less toxic and most often only on C. pipiens. The relative potency of each strain can be expressed by specific titres on the different mosquito species and by activity ratios derived from such titres.

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  1. Bactéries Entomopathogènes, Institut Pasteur, 25, rue du Dr Roux, F-75724, Paris Cedex, France

    I. Thiery & H. de Barjac

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  1. I. Thiery
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  2. H. de Barjac
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Thiery, I., de Barjac, H. Selection of the most potent Bacillus sphaericus strains based on activity ratios determined on three mosquito species. Appl Microbiol Biotechnol 31, 577–581 (1989). https://doi.org/10.1007/BF00270798

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  • DOI: https://doi.org/10.1007/BF00270798

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